--- Lib/test/test_argparse.py
+++ Lib/test/test_argparse.py
@@ -1502,6 +1502,7 @@
         return self.name == other.name
 
 
+@unittest.skipIf(hasattr(os, 'geteuid') and os.geteuid() == 0, "non-root user required")
 class TestFileTypeW(TempDirMixin, ParserTestCase):
     """Test the FileType option/argument type for writing files"""